package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.entity.SetmealDish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealDishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

@RestController
@Slf4j
@RequestMapping("/dish")
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private SetmealDishService setmealDishService;

    @Autowired
    private RedisTemplate redisTemplate;
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
       // log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        //清理所有菜品缓存
        Set keys = redisTemplate.keys("dish_*");
        redisTemplate.delete(keys);
        // dishService.save(dish);
        return R.success("保存成功");

    }

    @GetMapping("/page")
    public R<Page> list(int page, int pageSize,String name){
        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null,Dish::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //执行分页查询
        dishService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");

        List<Dish> records = pageInfo.getRecords();

        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }



    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        dishService.updateWithFlavor(dishDto);
     //   Set keys = redisTemplate.keys("dish_*");
       // redisTemplate.delete(keys);

        //精确清理
        String key = "dish_"+dishDto.getCategoryId()+"_1";
        redisTemplate.delete(key);
        return R.success("修改成功");
    }
    @GetMapping("/{id}")
    public R<DishDto> updateById(@PathVariable Long id){

        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);

    }

    @PostMapping("/status/{status}")
    public R<String> update(@PathVariable(name = "status") int status,@RequestParam(name = "ids") String[] ids){
        System.out.println("status+"+status+"bbbb"+ids);

        //System.out.println("dish+"+dish);
     //   LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
       // queryWrapper.eq(Dish::getStatus,status);
        for (String id : ids) {
            Dish byId = dishService.getById(id);
            byId.setStatus(status);
            System.out.println("数据修改:"+byId);
            dishService.updateById(byId);
        }


        return R.success("修改成功");
    }

//    @GetMapping("/list")
//    public R<List<Dish>> save2(Dish dish){
//        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper();
//        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
//        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//        List<Dish> list = dishService.list(queryWrapper);
//
//        return R.success(list);
//    }


    @GetMapping("/list")
    public R<List<DishDto>> save2(Dish dish){
        List<DishDto> dishDtoList = null;
        String key = "dish_"+dish.getCategoryId()+"_"+dish.getStatus();

        //先从redis中获取缓存数据
        dishDtoList= (List<DishDto>) redisTemplate.opsForValue().get(key);
        //如果存在，直接返回，无需查询数据库
        if (dishDtoList!=null){
            return R.success(dishDtoList);
        }
        //如果不存在在，则查询

        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(queryWrapper);

      dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            //当前菜品id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> queryWrapper1 = new LambdaQueryWrapper();
            queryWrapper1.eq(DishFlavor::getDishId,dishId);
            List<DishFlavor> list1 = dishFlavorService.list(queryWrapper1);
            dishDto.setFlavors(list1);
            return dishDto;
        }).collect(Collectors.toList());
      //缓存到redis
        redisTemplate.opsForValue().set(key,dishDtoList,60,TimeUnit.MINUTES);
        //List<DishDto> dishDtoList = null;

        return R.success(dishDtoList);
    }


    @DeleteMapping
    public R<String> delete(String[] ids){
        log.info("id为{}",ids);
        System.out.println("数据编号"+ids);
        dishService.removeById(ids);

        LambdaQueryWrapper<SetmealDish> queryWrapper = new LambdaQueryWrapper<>();

         queryWrapper.eq(SetmealDish::getSetmealId, ids);
        List<SetmealDish> list = setmealDishService.list();
        if (list!=null){
           System.out.println("数据ID"+list);
            return R.error("无法删除，存在套餐内容");
        }
        //categoryService.removeById(ids);
        return R.success("删除成功");

    }

}
